Engineering Unit Converter

Unit conversion for piping and process engineers. Supports pressure (Pa, kPa, MPa, bar, psi, atm, mmHg, mH₂O), volumetric flow (m³/h, L/s, gpm, cfm), mass flow (kg/s, kg/h, lb/h), length and diameter (m, mm, in, ft), velocity (m/s, ft/s), temperature (°C, K, °F, °R), dynamic viscosity (Pa·s, cP, lb/ft·s), and density (kg/m³, lb/ft³, kg/L).

Conversions use exact factors where defined and standard reference values otherwise. Results show to engineering precision (typically 4–6 significant figures).